Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1007/s10531-014-0834-z |
The road less travelled: assessing variation in mammal detection probabilities with camera traps in a semi-arid biodiversity hotspot | |
Mann, Gareth K. H.1; O’Riain, M. Justin2; Parker, Daniel M.1 | |
通讯作者 | Mann, Gareth K. H. |
来源期刊 | BIODIVERSITY AND CONSERVATION
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ISSN | 0960-3115 |
EISSN | 1572-9710 |
出版年 | 2015 |
卷号 | 24期号:3页码:531-545 |
英文摘要 | Camera traps are an increasingly popular tool for monitoring medium to large mammals, but the influence of camera trap placement on the detection probabilities of different species has seldom been investigated. In this study we explore the influence of roads on the detection probability of medium to large mammals in three vegetation types in the Little Karoo, an arid biodiversity hotspot. We placed cameras in nine 100 m-long transects, running perpendicular from roads within a conservation area. The camera traps were spaced at similar to 25 m intervals, and were active for an average of 88 days each. Detection probabilities relative to distance from roads showed extensive variation between species and habitat types. There was no clear relationship between distance from the road and the detection probability of most species and guilds, although carnivore detection probability declined significantly as distance from roads increased in all vegetation types. Our results suggest that there is considerable inter-specific variation in detection probability that is significantly influenced by camera trap location relative to roads. Therefore studies that seek to maximise the detection rates of particular species or guilds (e.g. carnivores) by placing cameras on prominent roads and trails are unlikely to provide reliable estimates of the relative abundance of the broader range of sympatric species; a trend observed elsewhere but hitherto untested in arid environments. We recommend that future studies employ a mixed design of cameras located on- and off-roads to provide better estimates of biodiversity in general and predators specifically. |
英文关键词 | Animal movement Road usage Camera trap Monitoring Biodiversity Little Karoo |
类型 | Article |
语种 | 英语 |
国家 | South Africa |
收录类别 | SCI-E |
WOS记录号 | WOS:000350228800007 |
WOS关键词 | TIGER PANTHERA-TIGRIS ; FOREST MAMMALS ; DIVERSITY ; ABUNDANCE ; ECOLOGY ; DENSITY ; PREY ; POPULATIONS ; ONCA |
WOS类目 | Biodiversity Conservation ; Ecology ; Environmental Sciences |
WOS研究方向 | Biodiversity & Conservation ; Environmental Sciences & Ecology |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/186192 |
作者单位 | 1.Rhodes Univ, Dept Zool & Entomol, Wildlife & Reserve Management Res Grp, POB 94, ZA-6140 Grahamstown, South Africa; 2.Univ Cape Town, Dept Biol Sci, ZA-7701 Cape Town, South Africa |
推荐引用方式 GB/T 7714 | Mann, Gareth K. H.,O’Riain, M. Justin,Parker, Daniel M.. The road less travelled: assessing variation in mammal detection probabilities with camera traps in a semi-arid biodiversity hotspot[J],2015,24(3):531-545. |
APA | Mann, Gareth K. H.,O’Riain, M. Justin,&Parker, Daniel M..(2015).The road less travelled: assessing variation in mammal detection probabilities with camera traps in a semi-arid biodiversity hotspot.BIODIVERSITY AND CONSERVATION,24(3),531-545. |
MLA | Mann, Gareth K. H.,et al."The road less travelled: assessing variation in mammal detection probabilities with camera traps in a semi-arid biodiversity hotspot".BIODIVERSITY AND CONSERVATION 24.3(2015):531-545. |
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